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6f231dda DW |
1 | /* |
2 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
3 | * redistributing this file, you may do so under either license. | |
4 | * | |
5 | * GPL LICENSE SUMMARY | |
6 | * | |
7 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of version 2 of the GNU General Public License as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | * The full GNU General Public License is included in this distribution | |
22 | * in the file called LICENSE.GPL. | |
23 | * | |
24 | * BSD LICENSE | |
25 | * | |
26 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. | |
27 | * All rights reserved. | |
28 | * | |
29 | * Redistribution and use in source and binary forms, with or without | |
30 | * modification, are permitted provided that the following conditions | |
31 | * are met: | |
32 | * | |
33 | * * Redistributions of source code must retain the above copyright | |
34 | * notice, this list of conditions and the following disclaimer. | |
35 | * * Redistributions in binary form must reproduce the above copyright | |
36 | * notice, this list of conditions and the following disclaimer in | |
37 | * the documentation and/or other materials provided with the | |
38 | * distribution. | |
39 | * * Neither the name of Intel Corporation nor the names of its | |
40 | * contributors may be used to endorse or promote products derived | |
41 | * from this software without specific prior written permission. | |
42 | * | |
43 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
44 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
45 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
46 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
47 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
48 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
49 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
50 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
51 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
52 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
53 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
54 | */ | |
ce2b3261 | 55 | #ifndef _SCI_HOST_H_ |
6f231dda DW |
56 | #define _SCI_HOST_H_ |
57 | ||
11cc5183 | 58 | #include <scsi/sas_ata.h> |
6f231dda | 59 | #include "remote_device.h" |
ce2b3261 | 60 | #include "phy.h" |
12ef6544 | 61 | #include "isci.h" |
cc9203bf | 62 | #include "remote_node_table.h" |
63a3a15f | 63 | #include "registers.h" |
63a3a15f | 64 | #include "unsolicited_frame_control.h" |
e2f8db50 | 65 | #include "probe_roms.h" |
cc9203bf | 66 | |
5076a1a9 | 67 | struct isci_request; |
cc9203bf DW |
68 | struct scu_task_context; |
69 | ||
e2f8db50 | 70 | |
cc9203bf | 71 | /** |
89a7301f | 72 | * struct sci_power_control - |
cc9203bf DW |
73 | * |
74 | * This structure defines the fields for managing power control for direct | |
75 | * attached disk devices. | |
76 | */ | |
89a7301f | 77 | struct sci_power_control { |
cc9203bf DW |
78 | /** |
79 | * This field is set when the power control timer is running and cleared when | |
80 | * it is not. | |
81 | */ | |
82 | bool timer_started; | |
83 | ||
84 | /** | |
0473661a | 85 | * Timer to control when the directed attached disks can consume power. |
cc9203bf | 86 | */ |
0473661a | 87 | struct sci_timer timer; |
cc9203bf DW |
88 | |
89 | /** | |
90 | * This field is used to keep track of how many phys are put into the | |
91 | * requesters field. | |
92 | */ | |
93 | u8 phys_waiting; | |
94 | ||
95 | /** | |
96 | * This field is used to keep track of how many phys have been granted to consume power | |
97 | */ | |
98 | u8 phys_granted_power; | |
99 | ||
100 | /** | |
101 | * This field is an array of phys that we are waiting on. The phys are direct | |
89a7301f | 102 | * mapped into requesters via struct sci_phy.phy_index |
cc9203bf | 103 | */ |
85280955 | 104 | struct isci_phy *requesters[SCI_MAX_PHYS]; |
cc9203bf DW |
105 | |
106 | }; | |
107 | ||
89a7301f | 108 | struct sci_port_configuration_agent; |
d9dcb4ba | 109 | typedef void (*port_config_fn)(struct isci_host *, |
89a7301f | 110 | struct sci_port_configuration_agent *, |
ffe191c9 | 111 | struct isci_port *, struct isci_phy *); |
50a92d93 DW |
112 | bool is_port_config_apc(struct isci_host *ihost); |
113 | bool is_controller_start_complete(struct isci_host *ihost); | |
e2f8db50 | 114 | |
89a7301f | 115 | struct sci_port_configuration_agent { |
e2f8db50 DW |
116 | u16 phy_configured_mask; |
117 | u16 phy_ready_mask; | |
118 | struct { | |
119 | u8 min_index; | |
120 | u8 max_index; | |
121 | } phy_valid_port_range[SCI_MAX_PHYS]; | |
122 | bool timer_pending; | |
123 | port_config_fn link_up_handler; | |
124 | port_config_fn link_down_handler; | |
ac0eeb4f | 125 | struct sci_timer timer; |
e2f8db50 DW |
126 | }; |
127 | ||
cc9203bf | 128 | /** |
d9dcb4ba DW |
129 | * isci_host - primary host/controller object |
130 | * @timer: timeout start/stop operations | |
131 | * @device_table: rni (hw remote node index) to remote device lookup table | |
132 | * @available_remote_nodes: rni allocator | |
133 | * @power_control: manage device spin up | |
134 | * @io_request_sequence: generation number for tci's (task contexts) | |
135 | * @task_context_table: hw task context table | |
136 | * @remote_node_context_table: hw remote node context table | |
137 | * @completion_queue: hw-producer driver-consumer communication ring | |
138 | * @completion_queue_get: tracks the driver 'head' of the ring to notify hw | |
139 | * @logical_port_entries: min({driver|silicon}-supported-port-count) | |
140 | * @remote_node_entries: min({driver|silicon}-supported-node-count) | |
141 | * @task_context_entries: min({driver|silicon}-supported-task-count) | |
142 | * @phy_timer: phy startup timer | |
143 | * @invalid_phy_mask: if an invalid_link_up notification is reported a bit for | |
144 | * the phy index is set so further notifications are not | |
145 | * made. Once the phy reports link up and is made part of a | |
146 | * port then this bit is cleared. | |
147 | ||
cc9203bf | 148 | */ |
d9dcb4ba | 149 | struct isci_host { |
e301370a | 150 | struct sci_base_state_machine sm; |
d9dcb4ba | 151 | /* XXX can we time this externally */ |
6cb5853d | 152 | struct sci_timer timer; |
d9dcb4ba | 153 | /* XXX drop reference module params directly */ |
89a7301f | 154 | struct sci_user_parameters user_parameters; |
d9dcb4ba | 155 | /* XXX no need to be a union */ |
89a7301f DW |
156 | struct sci_oem_params oem_parameters; |
157 | struct sci_port_configuration_agent port_agent; | |
78a6f06e | 158 | struct isci_remote_device *device_table[SCI_MAX_REMOTE_DEVICES]; |
89a7301f DW |
159 | struct sci_remote_node_table available_remote_nodes; |
160 | struct sci_power_control power_control; | |
dd047c8e | 161 | u8 io_request_sequence[SCI_MAX_IO_REQUESTS]; |
cc9203bf | 162 | struct scu_task_context *task_context_table; |
abec912d | 163 | dma_addr_t tc_dma; |
cc9203bf | 164 | union scu_remote_node_context *remote_node_context_table; |
abec912d | 165 | dma_addr_t rnc_dma; |
cc9203bf | 166 | u32 *completion_queue; |
abec912d | 167 | dma_addr_t cq_dma; |
cc9203bf | 168 | u32 completion_queue_get; |
cc9203bf | 169 | u32 logical_port_entries; |
cc9203bf | 170 | u32 remote_node_entries; |
cc9203bf | 171 | u32 task_context_entries; |
abec912d DW |
172 | void *ufi_buf; |
173 | dma_addr_t ufi_dma; | |
89a7301f | 174 | struct sci_unsolicited_frame_control uf_control; |
cc9203bf | 175 | |
d9dcb4ba | 176 | /* phy startup */ |
bb3dbdf6 | 177 | struct sci_timer phy_timer; |
d9dcb4ba | 178 | /* XXX kill */ |
cc9203bf | 179 | bool phy_startup_timer_pending; |
cc9203bf | 180 | u32 next_phy_to_start; |
34a99158 | 181 | /* XXX convert to unsigned long and use bitops */ |
cc9203bf DW |
182 | u8 invalid_phy_mask; |
183 | ||
d9dcb4ba | 184 | /* TODO attempt dynamic interrupt coalescing scheme */ |
cc9203bf | 185 | u16 interrupt_coalesce_number; |
cc9203bf | 186 | u32 interrupt_coalesce_timeout; |
cc9203bf | 187 | struct smu_registers __iomem *smu_registers; |
cc9203bf DW |
188 | struct scu_registers __iomem *scu_registers; |
189 | ||
ac668c69 DW |
190 | u16 tci_head; |
191 | u16 tci_tail; | |
192 | u16 tci_pool[SCI_MAX_IO_REQUESTS]; | |
193 | ||
6f231dda | 194 | int id; /* unique within a given pci device */ |
6f231dda | 195 | struct isci_phy phys[SCI_MAX_PHYS]; |
e531381e | 196 | struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */ |
c132f692 | 197 | struct asd_sas_port sas_ports[SCI_MAX_PORTS]; |
6f231dda DW |
198 | struct sas_ha_struct sas_ha; |
199 | ||
6f231dda | 200 | struct pci_dev *pdev; |
0cf89d1d DW |
201 | #define IHOST_START_PENDING 0 |
202 | #define IHOST_STOP_PENDING 1 | |
2396a265 | 203 | #define IHOST_IRQ_ENABLED 2 |
0cf89d1d DW |
204 | unsigned long flags; |
205 | wait_queue_head_t eventq; | |
6f231dda | 206 | struct tasklet_struct completion_tasklet; |
6f231dda | 207 | spinlock_t scic_lock; |
db056250 | 208 | struct isci_request *reqs[SCI_MAX_IO_REQUESTS]; |
57f20f4e | 209 | struct isci_remote_device devices[SCI_MAX_REMOTE_DEVICES]; |
6f231dda DW |
210 | }; |
211 | ||
cc9203bf | 212 | /** |
89a7301f | 213 | * enum sci_controller_states - This enumeration depicts all the states |
cc9203bf DW |
214 | * for the common controller state machine. |
215 | */ | |
89a7301f | 216 | enum sci_controller_states { |
cc9203bf DW |
217 | /** |
218 | * Simply the initial state for the base controller state machine. | |
219 | */ | |
e301370a | 220 | SCIC_INITIAL = 0, |
cc9203bf DW |
221 | |
222 | /** | |
223 | * This state indicates that the controller is reset. The memory for | |
224 | * the controller is in it's initial state, but the controller requires | |
225 | * initialization. | |
226 | * This state is entered from the INITIAL state. | |
227 | * This state is entered from the RESETTING state. | |
228 | */ | |
e301370a | 229 | SCIC_RESET, |
cc9203bf DW |
230 | |
231 | /** | |
232 | * This state is typically an action state that indicates the controller | |
233 | * is in the process of initialization. In this state no new IO operations | |
234 | * are permitted. | |
235 | * This state is entered from the RESET state. | |
236 | */ | |
e301370a | 237 | SCIC_INITIALIZING, |
cc9203bf DW |
238 | |
239 | /** | |
240 | * This state indicates that the controller has been successfully | |
241 | * initialized. In this state no new IO operations are permitted. | |
242 | * This state is entered from the INITIALIZING state. | |
243 | */ | |
e301370a | 244 | SCIC_INITIALIZED, |
cc9203bf DW |
245 | |
246 | /** | |
247 | * This state indicates the the controller is in the process of becoming | |
248 | * ready (i.e. starting). In this state no new IO operations are permitted. | |
249 | * This state is entered from the INITIALIZED state. | |
250 | */ | |
e301370a | 251 | SCIC_STARTING, |
cc9203bf DW |
252 | |
253 | /** | |
254 | * This state indicates the controller is now ready. Thus, the user | |
255 | * is able to perform IO operations on the controller. | |
256 | * This state is entered from the STARTING state. | |
257 | */ | |
e301370a | 258 | SCIC_READY, |
cc9203bf DW |
259 | |
260 | /** | |
261 | * This state is typically an action state that indicates the controller | |
262 | * is in the process of resetting. Thus, the user is unable to perform | |
263 | * IO operations on the controller. A reset is considered destructive in | |
264 | * most cases. | |
265 | * This state is entered from the READY state. | |
266 | * This state is entered from the FAILED state. | |
267 | * This state is entered from the STOPPED state. | |
268 | */ | |
e301370a | 269 | SCIC_RESETTING, |
cc9203bf DW |
270 | |
271 | /** | |
272 | * This state indicates that the controller is in the process of stopping. | |
273 | * In this state no new IO operations are permitted, but existing IO | |
274 | * operations are allowed to complete. | |
275 | * This state is entered from the READY state. | |
276 | */ | |
e301370a | 277 | SCIC_STOPPING, |
cc9203bf | 278 | |
cc9203bf DW |
279 | /** |
280 | * This state indicates that the controller could not successfully be | |
281 | * initialized. In this state no new IO operations are permitted. | |
282 | * This state is entered from the INITIALIZING state. | |
283 | * This state is entered from the STARTING state. | |
284 | * This state is entered from the STOPPING state. | |
285 | * This state is entered from the RESETTING state. | |
286 | */ | |
e301370a | 287 | SCIC_FAILED, |
cc9203bf DW |
288 | }; |
289 | ||
6f231dda DW |
290 | /** |
291 | * struct isci_pci_info - This class represents the pci function containing the | |
292 | * controllers. Depending on PCI SKU, there could be up to 2 controllers in | |
293 | * the PCI function. | |
294 | */ | |
295 | #define SCI_MAX_MSIX_INT (SCI_NUM_MSI_X_INT*SCI_MAX_CONTROLLERS) | |
296 | ||
297 | struct isci_pci_info { | |
298 | struct msix_entry msix_entries[SCI_MAX_MSIX_INT]; | |
b329aff1 | 299 | struct isci_host *hosts[SCI_MAX_CONTROLLERS]; |
d044af17 | 300 | struct isci_orom *orom; |
6f231dda DW |
301 | }; |
302 | ||
303 | static inline struct isci_pci_info *to_pci_info(struct pci_dev *pdev) | |
304 | { | |
305 | return pci_get_drvdata(pdev); | |
306 | } | |
307 | ||
d1dc5e2d DW |
308 | static inline struct Scsi_Host *to_shost(struct isci_host *ihost) |
309 | { | |
310 | return ihost->sas_ha.core.shost; | |
311 | } | |
312 | ||
b329aff1 | 313 | #define for_each_isci_host(id, ihost, pdev) \ |
c59053a2 LD |
314 | for (id = 0; id < SCI_MAX_CONTROLLERS && \ |
315 | (ihost = to_pci_info(pdev)->hosts[id]); id++) | |
6f231dda | 316 | |
0cf89d1d DW |
317 | static inline void wait_for_start(struct isci_host *ihost) |
318 | { | |
319 | wait_event(ihost->eventq, !test_bit(IHOST_START_PENDING, &ihost->flags)); | |
320 | } | |
321 | ||
322 | static inline void wait_for_stop(struct isci_host *ihost) | |
323 | { | |
324 | wait_event(ihost->eventq, !test_bit(IHOST_STOP_PENDING, &ihost->flags)); | |
325 | } | |
326 | ||
6ad31fec DW |
327 | static inline void wait_for_device_start(struct isci_host *ihost, struct isci_remote_device *idev) |
328 | { | |
329 | wait_event(ihost->eventq, !test_bit(IDEV_START_PENDING, &idev->flags)); | |
330 | } | |
331 | ||
332 | static inline void wait_for_device_stop(struct isci_host *ihost, struct isci_remote_device *idev) | |
333 | { | |
d9c37390 | 334 | wait_event(ihost->eventq, !test_bit(IDEV_STOP_PENDING, &idev->flags)); |
6ad31fec | 335 | } |
0cf89d1d | 336 | |
4393aa4e DW |
337 | static inline struct isci_host *dev_to_ihost(struct domain_device *dev) |
338 | { | |
339 | return dev->port->ha->lldd_ha; | |
340 | } | |
6f231dda | 341 | |
de2eb4d5 JS |
342 | static inline struct isci_host *idev_to_ihost(struct isci_remote_device *idev) |
343 | { | |
344 | return dev_to_ihost(idev->domain_dev); | |
345 | } | |
346 | ||
34a99158 DW |
347 | /* we always use protocol engine group zero */ |
348 | #define ISCI_PEG 0 | |
6f231dda | 349 | |
89a7301f | 350 | /* see sci_controller_io_tag_allocate|free for how seq and tci are built */ |
dd047c8e | 351 | #define ISCI_TAG(seq, tci) (((u16) (seq)) << 12 | tci) |
cc9203bf | 352 | |
dd047c8e DW |
353 | /* these are returned by the hardware, so sanitize them */ |
354 | #define ISCI_TAG_SEQ(tag) (((tag) >> 12) & (SCI_MAX_SEQ-1)) | |
355 | #define ISCI_TAG_TCI(tag) ((tag) & (SCI_MAX_IO_REQUESTS-1)) | |
cc9203bf | 356 | |
9b4be528 DW |
357 | /* interrupt coalescing baseline: 9 == 3 to 5us interrupt delay per command */ |
358 | #define ISCI_COALESCE_BASE 9 | |
359 | ||
cc9203bf | 360 | /* expander attached sata devices require 3 rnc slots */ |
89a7301f | 361 | static inline int sci_remote_device_node_count(struct isci_remote_device *idev) |
cc9203bf | 362 | { |
78a6f06e | 363 | struct domain_device *dev = idev->domain_dev; |
cc9203bf | 364 | |
11cc5183 | 365 | if (dev_is_sata(dev) && dev->parent) |
cc9203bf DW |
366 | return SCU_STP_REMOTE_NODE_COUNT; |
367 | return SCU_SSP_REMOTE_NODE_COUNT; | |
368 | } | |
369 | ||
cc9203bf | 370 | /** |
89a7301f | 371 | * sci_controller_clear_invalid_phy() - |
cc9203bf DW |
372 | * |
373 | * This macro will clear the bit in the invalid phy mask for this controller | |
374 | * object. This is used to control messages reported for invalid link up | |
375 | * notifications. | |
376 | */ | |
89a7301f | 377 | #define sci_controller_clear_invalid_phy(controller, phy) \ |
cc9203bf DW |
378 | ((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index)) |
379 | ||
78a6f06e | 380 | static inline struct device *scirdev_to_dev(struct isci_remote_device *idev) |
cc9203bf | 381 | { |
cc9203bf DW |
382 | if (!idev || !idev->isci_port || !idev->isci_port->isci_host) |
383 | return NULL; | |
384 | ||
385 | return &idev->isci_port->isci_host->pdev->dev; | |
386 | } | |
387 | ||
dc00c8b6 | 388 | static inline bool is_a2(struct pci_dev *pdev) |
cc9203bf | 389 | { |
dc00c8b6 DW |
390 | if (pdev->revision < 4) |
391 | return true; | |
392 | return false; | |
cc9203bf DW |
393 | } |
394 | ||
dc00c8b6 | 395 | static inline bool is_b0(struct pci_dev *pdev) |
cc9203bf | 396 | { |
dc00c8b6 DW |
397 | if (pdev->revision == 4) |
398 | return true; | |
399 | return false; | |
dbb0743a AG |
400 | } |
401 | ||
dc00c8b6 | 402 | static inline bool is_c0(struct pci_dev *pdev) |
dbb0743a | 403 | { |
afd13a1f JS |
404 | if (pdev->revision == 5) |
405 | return true; | |
406 | return false; | |
407 | } | |
408 | ||
409 | static inline bool is_c1(struct pci_dev *pdev) | |
410 | { | |
411 | if (pdev->revision >= 6) | |
dc00c8b6 DW |
412 | return true; |
413 | return false; | |
cc9203bf DW |
414 | } |
415 | ||
9fee607f JS |
416 | enum cable_selections { |
417 | short_cable = 0, | |
418 | long_cable = 1, | |
419 | medium_cable = 2, | |
420 | undefined_cable = 3 | |
421 | }; | |
422 | ||
423 | #define CABLE_OVERRIDE_DISABLED (0x10000) | |
424 | ||
425 | static inline int is_cable_select_overridden(void) | |
426 | { | |
427 | return cable_selection_override < CABLE_OVERRIDE_DISABLED; | |
428 | } | |
429 | ||
430 | enum cable_selections decode_cable_selection(struct isci_host *ihost, int phy); | |
431 | void validate_cable_selections(struct isci_host *ihost); | |
432 | char *lookup_cable_names(enum cable_selections); | |
433 | ||
ad4f4c1d DW |
434 | /* set hw control for 'activity', even though active enclosures seem to drive |
435 | * the activity led on their own. Skip setting FSENG control on 'status' due | |
436 | * to unexpected operation and 'error' due to not being a supported automatic | |
437 | * FSENG output | |
438 | */ | |
439 | #define SGPIO_HW_CONTROL 0x00000443 | |
440 | ||
441 | static inline int isci_gpio_count(struct isci_host *ihost) | |
442 | { | |
443 | return ARRAY_SIZE(ihost->scu_registers->peg0.sgpio.output_data_select); | |
444 | } | |
445 | ||
89a7301f | 446 | void sci_controller_post_request(struct isci_host *ihost, |
cc9203bf | 447 | u32 request); |
89a7301f | 448 | void sci_controller_release_frame(struct isci_host *ihost, |
cc9203bf | 449 | u32 frame_index); |
89a7301f | 450 | void sci_controller_copy_sata_response(void *response_buffer, |
cc9203bf DW |
451 | void *frame_header, |
452 | void *frame_buffer); | |
89a7301f | 453 | enum sci_status sci_controller_allocate_remote_node_context(struct isci_host *ihost, |
78a6f06e | 454 | struct isci_remote_device *idev, |
cc9203bf | 455 | u16 *node_id); |
89a7301f | 456 | void sci_controller_free_remote_node_context( |
d9dcb4ba | 457 | struct isci_host *ihost, |
78a6f06e | 458 | struct isci_remote_device *idev, |
cc9203bf | 459 | u16 node_id); |
cc9203bf | 460 | |
abec912d DW |
461 | struct isci_request *sci_request_by_tag(struct isci_host *ihost, u16 io_tag); |
462 | void sci_controller_power_control_queue_insert(struct isci_host *ihost, | |
463 | struct isci_phy *iphy); | |
464 | void sci_controller_power_control_queue_remove(struct isci_host *ihost, | |
465 | struct isci_phy *iphy); | |
466 | void sci_controller_link_up(struct isci_host *ihost, struct isci_port *iport, | |
467 | struct isci_phy *iphy); | |
468 | void sci_controller_link_down(struct isci_host *ihost, struct isci_port *iport, | |
469 | struct isci_phy *iphy); | |
470 | void sci_controller_remote_device_stopped(struct isci_host *ihost, | |
471 | struct isci_remote_device *idev); | |
cc9203bf | 472 | |
89a7301f | 473 | enum sci_status sci_controller_continue_io(struct isci_request *ireq); |
cc9203bf | 474 | int isci_host_scan_finished(struct Scsi_Host *, unsigned long); |
e468dc11 | 475 | void isci_host_start(struct Scsi_Host *); |
312e0c24 DW |
476 | u16 isci_alloc_tag(struct isci_host *ihost); |
477 | enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag); | |
478 | void isci_tci_free(struct isci_host *ihost, u16 tci); | |
f8381807 | 479 | void ireq_done(struct isci_host *ihost, struct isci_request *ireq, struct sas_task *task); |
6f231dda DW |
480 | |
481 | int isci_host_init(struct isci_host *); | |
abec912d DW |
482 | void isci_host_completion_routine(unsigned long data); |
483 | void isci_host_deinit(struct isci_host *); | |
484 | void sci_controller_disable_interrupts(struct isci_host *ihost); | |
eb608c3c | 485 | bool sci_controller_has_remote_devices_stopping(struct isci_host *ihost); |
50a92d93 | 486 | void sci_controller_transition_to_ready(struct isci_host *ihost, enum sci_status status); |
cc9203bf | 487 | |
89a7301f | 488 | enum sci_status sci_controller_start_io( |
d9dcb4ba | 489 | struct isci_host *ihost, |
78a6f06e | 490 | struct isci_remote_device *idev, |
5076a1a9 | 491 | struct isci_request *ireq); |
cc9203bf | 492 | |
89a7301f | 493 | enum sci_task_status sci_controller_start_task( |
d9dcb4ba | 494 | struct isci_host *ihost, |
78a6f06e | 495 | struct isci_remote_device *idev, |
5076a1a9 | 496 | struct isci_request *ireq); |
cc9203bf | 497 | |
89a7301f | 498 | enum sci_status sci_controller_terminate_request( |
d9dcb4ba | 499 | struct isci_host *ihost, |
78a6f06e | 500 | struct isci_remote_device *idev, |
5076a1a9 | 501 | struct isci_request *ireq); |
cc9203bf | 502 | |
89a7301f | 503 | enum sci_status sci_controller_complete_io( |
d9dcb4ba | 504 | struct isci_host *ihost, |
78a6f06e | 505 | struct isci_remote_device *idev, |
5076a1a9 | 506 | struct isci_request *ireq); |
cc9203bf | 507 | |
89a7301f DW |
508 | void sci_port_configuration_agent_construct( |
509 | struct sci_port_configuration_agent *port_agent); | |
e2f8db50 | 510 | |
89a7301f | 511 | enum sci_status sci_port_configuration_agent_initialize( |
d9dcb4ba | 512 | struct isci_host *ihost, |
89a7301f | 513 | struct sci_port_configuration_agent *port_agent); |
ad4f4c1d DW |
514 | |
515 | int isci_gpio_write(struct sas_ha_struct *, u8 reg_type, u8 reg_index, | |
516 | u8 reg_count, u8 *write_data); | |
cc9203bf | 517 | #endif |